| Fiscal period | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 |
|---|
| Period End Date | 12/31/2021 | 12/31/2020 | 12/31/2019 | 12/31/2018 | 12/31/2017 | 12/31/2016 | 12/31/2015 | 12/31/2014 | 12/31/2013 | 12/31/2012 |
|---|
| Revenues | 2,553.96 | 2,518.38 | 2,222.56 | 1,958.56 | 1,717.02 | 1,601.60 | 1,550.12 | 1,773.98 | 2,310.07 | 2,582.30 |
| Total Revenues | 2,553.96 | 2,518.38 | 2,222.56 | 1,958.56 | 1,717.02 | 1,601.60 | 1,550.12 | 1,773.98 | 2,310.07 | 2,582.30 |
| Cost of Services | 2,174.55 | 2,138.79 | 1,893.46 | 1,678.10 | 1,463.60 | 1,369.78 | 1,320.70 | 1,524.21 | 1,995.63 | 2,213.89 |
| Gross Profit | 379.41 | 379.59 | 329.10 | 280.46 | 253.42 | 231.82 | 229.42 | 249.77 | 314.44 | -- |
| Depreciation and amortization | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Goodwill impairment | -- | -- | -- | -- | -- | -- | -- | -- | 118.43 | -- |
| General and Administrative | 192.60 | 221.54 | 190.77 | 167.72 | 155.23 | 140.86 | 144.53 | 154.96 | 173.77 | 197.41 |
| Operating Income (Loss) | 186.82 | 158.05 | 138.33 | 112.74 | 98.19 | 90.96 | 84.89 | 94.82 | 22.24 | 170.99 |
| Interest (expense), net | 2.39 | 1.90 | 2.59 | 2.38 | 1.38 | 1.10 | 1.19 | 5.80 | 16.27 | 16.30 |
| Gain on disposal of an operation | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Equity in earnings (losses) of affiliates | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Interest income | 0.13 | 0.25 | 0.45 | 0.16 | 0.10 | 0.12 | 0.16 | 0.39 | 0.61 | 0.34 |
| Other income (expense), net | (0.28) | 0.00 | (0.08) | 0.08 | 0.32 | 0.08 | 1.50 | (0.23) | (0.03) | (0.07) |
| Gain (loss) on extinguishment of debt | -- | -- | -- | -- | -- | -- | -- | (10.07) | -- | -- |
| Pre-Tax Income - Domestic | -- | -- | -- | 110.51 | 97.72 | 89.99 | 85.67 | 79.24 | 6.77 | 155.38 |
| Pre-Tax Income - Foreign | -- | -- | -- | 0.09 | (0.48) | 0.08 | (0.31) | (0.14) | (0.22) | (0.43) |
| Income before provision for income taxes and minority interest | 184.28 | 156.40 | 136.10 | 110.61 | 97.24 | 90.07 | 85.35 | 79.10 | 6.55 | 154.95 |
| Provision for income taxes | 47.54 | 35.87 | 22.21 | 28.53 | (16.86) | 33.79 | 34.37 | 31.53 | 11.84 | 59.94 |
| Current provision:Federal | 18.51 | 16.30 | (9.09) | 11.60 | 5.34 | 13.45 | 2.71 | 10.38 | 18.70 | 37.93 |
| Current provision-State | 9.77 | 7.46 | 6.02 | 4.94 | 2.52 | 2.39 | 1.25 | 2.50 | 4.01 | 5.78 |
| Current provision-Foreign | 0.03 | 0.14 | 0.10 | 0.13 | 0.04 | (0.05) | 0.08 | 0.16 | 0.09 | 0.12 |
| Deferred Provision (Benefit):Federal | 14.28 | 8.18 | 13.45 | 8.01 | (28.01) | 17.17 | 27.82 | 17.74 | (6.56) | 15.24 |
| Deferred Provision (Benefit):State | 3.53 | 1.71 | 2.30 | 3.59 | 3.31 | 2.83 | 5.83 | 4.48 | (1.86) | 2.33 |
| Deferred Provision (Benefit):Foreign | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Provision resulting from allocating tax benefits directly to additional paid in capital and changes in liabilities : Fed | 1.31 | 2.00 | 9.44 | 0.23 | (0.06) | -- | (2.57) | (2.76) | (2.01) | (1.31) |
| Provision resulting from allocating tax benefits directly to additional paid in capital and changes in liabilities : Sta | 0.14 | 0.09 | -- | 0.03 | -- | -- | (0.75) | (0.97) | (0.52) | (0.16) |
| Provision resulting from allocating tax benefits directly to additional paid in capital and changes in liabilities : For | (0.03) | (0.01) | -- | -- | -- | -- | -- | -- | (0.01) | -- |
| Minority interest | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Equity in earnings of unconsolidated subsidiaries | 0.28 | 0.00 | 0.00 | 0.02 | 0.04 | 0.11 | 0.14 | (0.28) | (0.86) | -- |
| Gain on disposal of equity method investment | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| INCOME FROM CONTINUING OPERATIONS-net of taxes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income (Loss) from discontinued operations-net of taxes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Loss on disposal of discontinued operations - net | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Net Income (Loss) Available to Common Shareholders | 137.02 | 120.53 | 113.89 | 82.10 | 114.14 | 56.39 | 51.13 | 47.29 | (6.15) | 95.02 |
| Income from continuing operations-net of taxes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| ClassA common stock - Income from continuing operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Class B common stock - Income from continuing operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income (Loss) from discontinued operations-net of taxes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| ClassA common stock - (Loss) from discontinued operations, net of taxes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Class B common stock - (Loss) from discontinued operations, net of taxes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Net Earnings Per Share (Basic) | 3.37 | 2.99 | 2.85 | 2.08 | 2.94 | 1.48 | 1.36 | 1.27 | (0.17) | 2.57 |
| Class A basic earnings per share | 3.37 | 2.99 | 2.85 | 2.08 | 2.94 | 1.48 | 1.36 | 1.27 | (0.17) | 2.57 |
| Class B Basic Earnings Per Share | 3.37 | 2.99 | 2.85 | 2.08 | 2.94 | 1.48 | 1.36 | 1.27 | (0.17) | 2.57 |
| Income from continuing operations-net of taxes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| ClassA common stock : Income from continuing operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Class B common stock - Income from continuing operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income (Loss) from discontinued operations-net of taxes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| ClassA common stock :(Loss) from discontinued operations, net of taxes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Class B : (Loss) from discontinued operations, net of taxes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Net Earnings Per Share (Diluted) | 3.35 | 2.97 | 2.83 | 2.06 | 2.91 | 1.47 | 1.36 | 1.27 | (0.17) | 2.57 |
| Class A diluted earnings per share | 3.35 | 2.97 | 2.83 | 2.06 | 2.91 | 1.47 | 1.36 | 1.27 | (0.17) | 2.57 |
| Class B diluted earnings per share | 3.35 | 2.97 | 2.83 | 2.06 | 2.91 | 1.47 | 1.36 | 1.27 | (0.17) | 2.57 |
| Class A common stock - Weighted average common shares outstanding | 27.46 | 27.11 | 26.76 | 26.35 | 25.69 | 24.94 | 24.32 | 24.05 | 23.91 | 23.73 |
| Class B common stock - Weighted average common shares outstanding | 13.18 | 13.19 | 13.19 | 13.19 | 13.19 | 13.19 | 13.19 | 13.19 | 13.19 | 13.19 |
| Weighted Average Shares Outstanding (Basic) | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Weighted Average Shares Outstanding (Diluted) | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Class A common stock - Weighted average common shares outstanding | 27.78 | 27.43 | 27.04 | 26.68 | 25.97 | 25.15 | 24.43 | 24.12 | 23.91 | 23.77 |
| Class B common stock - Weighted average common shares outstanding | 13.18 | 13.19 | 13.19 | 13.19 | 13.19 | 13.19 | 13.19 | 13.19 | 13.19 | 13.19 |